Wyoming State Water Plan, Wyoming Water Development Office
Rafting on Snake River Lake Marie, Snowy Mountains Wyoming Wind River Range picture

STATEWIDE FRAMEWORK PLAN: Updated Data Tables
2007: Data Table



Estimated Average Annual Irrigation Water Supply-Limited Consumptive Use (Depletions) from Most Recent Update
River Basin 1973 Total
CU		 Current Total
CU		 Active
Irrigated
Lands		 Unit CU Total CU
Wet Normal Dry
ac-ft ac-ft acres ac-ft/ac ac-ft
 Bear (2011)2     91,209   64,000   1.42          
 Green (2010)5   243,000   396,246   334,500   1.18   421,639       370,852 
 Northeast (2003)   160,000   86,000   77,000   1.12   88,000   86,000   76,000 
 Platte (2006)2   686,000   550,000   612,000   0.9   527,000   566,000   515,000 
 Powder/Tongue (2002)1      184,000   161,000   1.14   194,000   184,000   178,000 
 Snake/Salt (2014)   --   80,747   99,029   0.815   80,763   80,747   80,404 
 Wind/Bighorn (2010)2,3   1,041,000   1,080,000   634,300   1.70   1,106,700   1,080,000   1,017,500 
 Total (2007)  2,279,000   2,456,000   1,944,000   1.234      
Values in RED indicate basins updated since previous statewide plan.
  1. In 1973 Framework Plan, Powder/Tongue Basin is included in Northeast Wyoming Basin. Also, the 1973 Wind/Bighorn Basin included the Little Bighorn subbasin, but the Little Bighorn is in the 2002 Powder/Tongue Basin.
  2. Bear, Platte, and Wind/Bighorn values are overall averages, Bear and Wind/Bighorn Basin Plans did not provide normal, dry, and wet year scenarios for consumptive use estimates. Current total CU for other basins taken from "normal" year averages.
  3. Wind/Bighorn River Basin Plan provided full-supply consumptive irrigation requirement but not supply-limited consumptive use. Table value was estimated by multiplying historical diversions by overall efficiency and does not include Tribal Futures projects.
  4. Average unit CU.
  5. Normal CU was not calculated in this Agricultural Use Memo, WYRAG Memo, 2009. Total CU, Active Irrigated Lands, and Unit CU numbers are all average values of the wet and dry year numbers.